CN215975170U - Anaerobic ammonia oxidation tank, rural sewage carbon neutralization treatment system and equipment - Google Patents
Anaerobic ammonia oxidation tank, rural sewage carbon neutralization treatment system and equipment Download PDFInfo
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- CN215975170U CN215975170U CN202122316570.XU CN202122316570U CN215975170U CN 215975170 U CN215975170 U CN 215975170U CN 202122316570 U CN202122316570 U CN 202122316570U CN 215975170 U CN215975170 U CN 215975170U
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Abstract
The utility model relates to an anaerobic ammonia oxidation tank, a rural sewage carbon neutralization treatment system and equipment. Is suitable for the field of municipal engineering. The technical scheme adopted by the utility model is as follows: an anaerobic ammonia oxidation tank is characterized in that: the anaerobic ammonium oxidation cell comprises a cell body, wherein a central cylinder is arranged in the center of the upper part in the cell body, the upper end opening of the central cylinder is a sewage inlet, a filler which is beneficial to the enrichment of anaerobic ammonium oxidation bacteria is filled in the region inside the cell body and outside the central cylinder, a digestive juice inlet is arranged on the cell wall of the lower part of the cell body, and an overflow weir is arranged at the top of the cell wall of the cell body. The utility model adopts the short-cut nitrification-anaerobic ammonia oxidation technology to treat the sewage, has small occupied area and can obviously reduce the energy consumption. According to the anaerobic ammonium oxidation reactor, the filler is arranged in the anaerobic ammonium oxidation reaction tank, so that the enrichment of microorganisms can be increased, the early-stage carbon capture is enhanced, and the generated sludge is recycled.
Description
Technical Field
The utility model relates to an anaerobic ammonia oxidation tank, a rural sewage carbon neutralization treatment system and equipment. Is suitable for the field of municipal engineering.
Background
In recent yearsChina vigorously pushes the construction of domestic rural sewage treatment facilities, the rural sewage treatment industry enters a rapid development stage, and most of the existing rural sewage treatment technologies continue to use urban sewage treatment technologies, such as AO (anaerobic-anoxic-oxic) process and various deformation processes (A)2O, SBR method), biological contact oxidation, bio-disc method, MBR, etc. Because rural sewage has the characteristics of large water quantity change, small treatment scale, strong dispersibility and weak systematicness, the defects of high energy consumption, complex operation and maintenance and low treatment effect of agricultural sewage treatment can be more highlighted by simply using the centralized domestic sewage treatment technology.
At present, the biomembrane method accounts for about 25% of village sewage treatment facilities, and the ecology + biotechnology and the activated sludge method account for 23% and 17% respectively. The biofilm method is most commonly an MBR (membrane bioreactor) technology, and has the most remarkable characteristics of high construction cost, easy membrane pollution, difficult later-stage operation and maintenance and high operation and maintenance cost. The most common representatives of ecology and biotechnology are the combined process of artificial wetland and biological treatment, and the most remarkable defects of the combined process are large occupied area and low applicability to village sites. The most common representative process of the activated sludge process is A2The method has the obvious characteristics of high energy consumption, energy waste, easy occurrence of operation and maintenance problems such as sludge expansion and the like.
In the prior art, most rural sewage is treated by urban sewage treatment technology, and the existing sewage treatment technology is directly used because the treatment scale of the agricultural sewage is small, so that the energy consumption of the agricultural sewage treatment is extremely high, and the electricity consumption per ton of water is more than 1 degree.
Disclosure of Invention
The technical problem to be solved by the utility model is as follows: aiming at the problems, the anaerobic ammonia oxidation tank, the carbon neutralization treatment system for rural sewage and equipment are provided.
The technical scheme adopted by the utility model is as follows: an anaerobic ammonia oxidation tank is characterized in that: the anaerobic ammonium oxidation cell comprises a cell body, wherein a central cylinder is arranged in the center of the upper part in the cell body, the upper end opening of the central cylinder is a sewage inlet, a filler which is beneficial to the enrichment of anaerobic ammonium oxidation bacteria is filled in the region inside the cell body and outside the central cylinder, a digestive juice inlet is arranged on the cell wall of the lower part of the cell body, and an overflow weir is arranged at the top of the cell wall of the cell body.
The filler in the anaerobic ammonia oxidation tank adopts the existing combined filler which is developed on the basis of soft filler and semi-soft filler and has the advantages of the soft filler and the semi-soft filler, and the anaerobic ammonia oxidation tank has the structure that a plastic wafer is pressed and buckled into a double-ring large plastic ring, and the hydroformylation fiber or polyester yarn is pressed on the ring of the ring, so that fiber bundles are uniformly distributed; the inner ring may be fixed to the packing mounting frame.
The packing is provided with a rotatable mounting frame. The carrying frame mainly refers to guide rods which are arranged at different heights of the anaerobic ammonia oxidation tank in the transverse direction, a driving mechanism is arranged on the guide rods, and the filler is fixed on the guide rods. A certain gap is formed between the inner ring of the combined filler and the guide rod, the filler rotates at a certain angle along with the water flow shearing force, and strains in the filler can loosen and fall off along with the rotation and the water flow shearing force, so that the combined filler is updated; the guide rod is provided with a driver which can drive the guide rod to rotate, so that the filler is shaken, and loosening, falling and updating of the strains are realized.
A rural sewage carbon neutralization treatment system which characterized in that: comprises a regulating tank, a buffer tank, a shortcut nitrification tank, a solid-liquid separation tank, a clean water tank and the anaerobic ammonia oxidation tank;
the adjusting tank is used for homogenizing water quality and water quantity, and conveying sewage in the adjusting tank to a sewage inlet of the anaerobic ammonia oxidation tank and the shortcut nitrification tank through a submersible sewage pump;
a communicating channel I which can be conducted when nitrate ions in the shortcut nitrification tank begin to be enriched (the concentration of the nitrate ions is higher than a preset value) is arranged between the shortcut nitrification tank and the buffer tank; the top of the short-cut nitrification tank is communicated with the solid-liquid separation tank through an overflow channel II;
the buffer tank is used for eliminating oxygen in the digestion liquid refluxed by the shortcut nitrification tank, and a communication channel II capable of controlling on-off is arranged between the buffer tank and the digestion liquid water inlet of the anaerobic ammonia oxidation tank;
the anaerobic ammonia oxidation tank is communicated with the shortcut nitrification tank through an overflow channel I;
and the solid-liquid separation tank is communicated with the clean water tank through an overflow channel III.
An S-shaped baffle is arranged in the buffer tank, and the water in the short-cut nitrification tank slowly flows through the S-shaped bend to gradually eliminate oxygen; the buffer tank has a certain residence time and can eliminate a part of oxygen.
An aerator and a nitrate ion sensor are arranged in the short-cut nitrification tank, the communicating channel I is provided with a starting and closing gate valve I, and the starting and closing gate valve I and the aerator are both connected with the nitrate ion sensor through a circuit.
The buffer tank is internally provided with a liquid level meter, the communicating channel II is provided with a starting and closing gate valve II, and the starting and closing gate valve II is in circuit connection with the liquid level meter.
The adjusting tank feeds the sewage into the anaerobic ammonia oxidation tank and the shortcut nitrification tank according to the proportion of 40 percent and 60 percent respectively through a submersible sewage pump.
And a filter is arranged on the water outlet pipeline of the adjusting tank.
A rural sewage carbon neutralization treatment device is characterized in that: the device comprises a device box body and a device main body arranged in the device box body, wherein the device main body comprises an anaerobic ammonia oxidation tank, a buffer tank, a shortcut nitrification tank, a solid-liquid separation tank and a clean water tank in the rural sewage carbon neutralization treatment system.
The utility model has the beneficial effects that: the utility model adopts the short-cut nitrification-anaerobic ammonia oxidation technology to treat the sewage, has small occupied area and can obviously reduce the energy consumption. According to the anaerobic ammonium oxidation reactor, the filler is arranged in the anaerobic ammonium oxidation reaction tank, so that the enrichment of microorganisms can be increased, the early-stage carbon capture is enhanced, and the generated sludge is recycled.
Drawings
Fig. 1 is a system block diagram of an embodiment.
FIG. 2 is a schematic structural diagram of the apparatus in the example.
In the figure: 1. a regulating tank; 2. an anaerobic ammonia oxidation tank; 2-1, a central cylinder; 2-2, filling; 2-3, a guide rod; 3. a buffer pool; 4. a short-distance digestion tank; 5. a solid-liquid separation tank; 6. a clean water tank; 7. a container; 8. opening and closing a gate valve I; 9. and opening and closing a gate valve II.
Detailed Description
The embodiment is a rural sewage carbon neutralization treatment system, which comprises an adjusting tank, an anaerobic ammonia oxidation tank, a buffer tank, a shortcut nitrification tank, a solid-liquid separation tank and a clean water tank.
In the embodiment, the regulating tank is used for homogenizing water quality and quantity, and a water outlet pipeline of the regulating tank conveys sewage in the regulating tank to the anaerobic ammonia oxidation tank and the shortcut nitrification tank respectively through a submersible sewage pump. The sewage enters an anaerobic ammonia oxidation tank and a short-cut nitrification tank according to the proportion of 40 percent and 60 percent respectively, and the proportion can provide guarantee for the reaction condition of anaerobic ammonia oxidation.
In the embodiment, an aerator and a nitrate ion sensor are arranged in the shortcut nitrification tank, the aerator adopts a plate-type aerator, and the aeration mode is intermittent aeration. The nitrification tank is important in terms of not only ensuring the removal efficiency of COD, but also inhibiting the generation of a large amount of nitrate ions, and the aeration time and the aeration quantity. The middle part of the wall of the short-cut nitrification tank is communicated with the buffer tank through a communicating channel I, and the communicating channel I is provided with a starting and closing gate valve I.
In the embodiment, the opening and closing gate valve I and the aerator are both connected with a nitrate ion sensor through circuits, when the nitrate ion sensor collects nitrate ions in the nitrification tank and begins to enrich, the aerator is controlled to stop aerating, and meanwhile, the opening and closing gate valve I between the buffer tank and the nitrification tank is opened, so that nitrified liquid in the nitrification tank enters the buffer tank through the communication channel I.
The buffer tank in the embodiment has the main function of eliminating oxygen in the nitrifying liquid flowing back from the nitrifying tank and ensuring that anaerobic ammonia oxidation is carried out under anaerobic conditions. Set up the level gauge in the buffer tank in this embodiment, through II intercommunications of intercommunication passageway between buffer tank and the anaerobic ammonium oxidation pond, intercommunication passageway II is equipped with plays and closes gate valve II.
In this embodiment, the second opening and closing gate valve is connected with the liquid level meter circuit in the buffer tank, and when the liquid level in the buffer tank reaches a certain height, the second opening and closing gate valve opens, and the nitrified liquid through deoxidization in the buffer tank enters the anaerobic ammonia oxidation tank through the communicating channel II.
The anaerobic ammonia oxidation tank in the embodiment comprises a tank body, wherein a central cylinder is arranged in the center of the upper part in the tank body, and the upper port of the central cylinder is a sewage inlet for receiving sewage conveyed by an adjusting tank; filling a filler which is beneficial to enrichment of anaerobic ammonium oxidation bacteria in the area inside the pool body and outside the central cylinder, wherein the filler is provided with a selectable carrying frame, so that the updating of strains on the filler can be automatically realized; the lower tank wall of the tank body is provided with a digestive juice water inlet which is communicated with the buffer tank through a communicating channel II.
The carrying frame mainly refers to guide rods which are arranged at different heights of the anaerobic ammonia oxidation tank in the transverse direction, a driving mechanism is arranged on the guide rods, and the filler is fixed on the guide rods. A certain gap is formed between the inner ring of the combined filler and the guide rod, the filler rotates at a certain angle along with the water flow shearing force, and strains in the filler can loosen and fall off along with the rotation and the water flow shearing force, so that the combined filler is updated; the guide rod is provided with a driver which can drive the guide rod to rotate, so that the filler is shaken, and loosening, falling and updating of the strains are realized.
The setting of semi-flexible filler in the anammox tank strengthens the anti-impact load capacity of the system on the one hand, improves the earlier-stage carbon capture capacity of the system on the other hand, and saves the energy consumption of subsequent treatment, and in addition, the setting of the filler is the key that the anammox strain can be enriched.
On one hand, the anaerobic ammonia oxidation tank can realize carbon capture in the early stage of sewage treatment, and on the other hand, the anaerobic ammonia oxidation tank can complete the removal of total nitrogen under the low-carbon condition.
In the embodiment, sewage conveyed by the regulating tank reacts in the anaerobic ammonia oxidation tank from the central cylinder to the periphery, nitrified liquid enters from the bottom of the anaerobic ammonia oxidation tank, and the two kinds of sewage are mixed to generate anaerobic ammonia oxidation reaction.
In this embodiment, the anaerobic ammonium oxidation pond top is through I intercommunication shortcut nitrification pond of overflow channel, and overflow channel I is equipped with the overflow well including setting up the overflow weir at anaerobic ammonium oxidation pond top corresponding to overflow weir including setting up, and the overflow well lets in the shortcut nitrification pond bottom through the pipeline. And sewage flows into the overflow well through the overflow weir, a pipeline is arranged in the overflow well, and the pipeline is introduced into the bottom of the shortcut nitrification tank.
In the embodiment, the top of the shortcut nitrification tank is communicated with the solid-liquid separation tank through an overflow channel II, and the overflow channel II comprises an overflow weir arranged at the top of the shortcut nitrification tank; the top of the solid-liquid separation tank is communicated with a clean water tank through an overflow channel III, the overflow channel III comprises an overflow port arranged at the top of the solid-liquid separation tank, a water body overflowed from the shortcut nitrification tank enters the solid-liquid separation tank from the bottom of the solid-liquid separation tank and then flows to the clean water tank from the overflow port at the top of the solid-liquid separation tank, and the effluent of the clean water tank is used for irrigation or other resource utilization.
The main processing flow of this embodiment is:
the sewage enters a regulating tank after being pretreated by a grid, and the regulating tank is mainly used for homogenizing water quality and water quantity;
the sewage in the regulating tank is pumped into a subsequent treatment unit through a submersible sewage pump, and a facility filter is arranged between the regulating tank and a subsequent reaction system to prevent the influence on the subsequent biochemical system when the water quality is poor. 40% of sewage in the regulating reservoir enters an anaerobic ammonia oxidation reaction tank, a semi-flexible membrane hanging assembly is arranged in the anaerobic ammonia oxidation tank, and 60% of effluent of the regulating reservoir enters a shortcut nitrification tank.
Adopt plate-type aerator in the short cut nitrification tank, the aeration mode is intermittent type formula aeration, at the internal installation nitrate ion inductor of nitrification tank, when nitrify the internal nitrate ion and begin the enrichment, stop the aeration, open intercommunication passageway I and intercommunication passageway II simultaneously, let the liquid of nitrifying in the short cut nitrification tank get into the buffer pool through intercommunication passageway I, the sewage that originally stops in the buffer pool gets into the anammox pond through intercommunication passageway II, the water of buffer pool flows through the anammox pond from bottom to top from the anammox pond bottom. The nitrification tank is important in terms of not only ensuring the removal efficiency of COD, but also inhibiting the generation of a large amount of nitrate ions, and the aeration time and the aeration quantity.
The anaerobic ammonia oxidation tank enters water from the central cylinder, semi-flexible fillers are arranged at different transverse heights in the tank, raw water reacts in the anaerobic ammonia oxidation tank from the central cylinder to the periphery, nitrified liquid enters from the bottom of the anaerobic ammonia oxidation tank, and the two kinds of sewage are mixed to generate anaerobic ammonia oxidation reaction.
And the water overflowing from the anaerobic ammonia oxidation tank is sent to the short-cut nitrification tank through the overflow channel I, so that the full reaction of the nitrification tank is facilitated.
And (3) the water overflowing from the short-cut nitrification tank enters a solid-liquid separation tank, the water overflowing from the solid-liquid separation tank enters a clean water tank, sewage enters the solid-liquid separation system after passing through the short-cut nitrification anaerobic ammonia oxidation system, sludge is concentrated, the sewage enters the clean water tank, and finally the concentrated sludge and clean water are recycled.
This embodiment still provides a rural sewage carbon neutralization treatment facility, its characterized in that: the device comprises a device box body and a device main body arranged in the device box body, wherein a heat insulation material is arranged between the device box body and the device main body, and the device main body comprises an anaerobic ammonia oxidation tank, a buffer tank, a shortcut nitrification tank, a solid-liquid separation tank, a clean water tank and the like in the rural sewage carbon neutralization treatment system.
The above-mentioned embodiments are only used for explaining the inventive concept of the present invention, and not for limiting the protection of the claims of the present invention, and all the insubstantial modifications of the present invention using this concept shall fall within the protection scope of the present invention.
Claims (8)
1. An anaerobic ammonia oxidation tank is characterized in that: the anaerobic ammonium oxidation cell comprises a cell body, wherein a central cylinder is arranged in the center of the upper part in the cell body, the upper end opening of the central cylinder is a sewage inlet, a filler which is beneficial to the enrichment of anaerobic ammonium oxidation bacteria is filled in the region inside the cell body and outside the central cylinder, a digestive juice inlet is arranged on the cell wall of the lower part of the cell body, and an overflow weir is arranged at the top of the cell wall of the cell body.
2. The anammox cell of claim 1, wherein: the packing is provided with a rotatable mounting frame.
3. A rural sewage carbon neutralization treatment system which characterized in that: comprises a regulating tank, a buffer tank, a shortcut nitrification tank, a solid-liquid separation tank, a clean water tank and the anaerobic ammonia oxidation tank of any one of claims 1 or 2;
the adjusting tank is used for homogenizing water quality and water quantity, and conveying sewage in the adjusting tank to a sewage inlet of the anaerobic ammonia oxidation tank and the shortcut nitrification tank through a submersible sewage pump;
a communicating channel I which can be conducted when nitrate ions begin to be enriched in the shortcut nitrification tank is arranged between the shortcut nitrification tank and the buffer tank; the top of the short-cut nitrification tank is communicated with the solid-liquid separation tank through an overflow channel II;
the buffer tank is used for eliminating oxygen in the digestion liquid refluxed by the shortcut nitrification tank, and a communication channel II capable of controlling on-off is arranged between the buffer tank and the digestion liquid water inlet of the anaerobic ammonia oxidation tank;
the anaerobic ammonia oxidation tank is communicated with the shortcut nitrification tank through an overflow channel I;
and the solid-liquid separation tank is communicated with the clean water tank through an overflow channel III.
4. The rural sewage carbon neutralization treatment system of claim 3, characterized in that: an aerator and a nitrate ion sensor are arranged in the short-cut nitrification tank, the communicating channel I is provided with a starting and closing gate valve I, and the starting and closing gate valve I and the aerator are both connected with the nitrate ion sensor through a circuit.
5. The rural sewage carbon neutralization treatment system of claim 3, characterized in that: the buffer tank is internally provided with a liquid level meter, the communicating channel II is provided with a starting and closing gate valve II, and the starting and closing gate valve II is in circuit connection with the liquid level meter.
6. The rural sewage carbon neutralization treatment system of claim 3, characterized in that: the adjusting tank feeds the sewage into the anaerobic ammonia oxidation tank and the shortcut nitrification tank according to the proportion of 40 percent and 60 percent respectively through a submersible sewage pump.
7. The rural sewage carbon neutralization treatment system of claim 3 or 6, characterized in that: and a filter is arranged on the water outlet pipeline of the adjusting tank.
8. A rural sewage carbon neutralization treatment device is characterized in that: the carbon neutralization treatment system is provided with an equipment box body and an equipment main body arranged in the equipment box body, wherein the equipment main body comprises an anaerobic ammonia oxidation tank, a buffer tank, a shortcut nitrification tank, a solid-liquid separation tank and a clean water tank in the rural sewage carbon neutralization treatment system according to any one of claims 3 to 7.
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| CN202122316570.XU CN215975170U (en) | 2021-09-24 | 2021-09-24 | Anaerobic ammonia oxidation tank, rural sewage carbon neutralization treatment system and equipment |
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| CN202122316570.XU CN215975170U (en) | 2021-09-24 | 2021-09-24 | Anaerobic ammonia oxidation tank, rural sewage carbon neutralization treatment system and equipment |
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